What is
Peanut butter is a food paste made from dry roasted peanuts, with added salt, sugar, seed oils, and emulsifiers.
  
Butterfat is a triglyceride (a fat) derived from fatty acids such as myristic, palmitic, and oleic acids. Saturated fatty acids: Palmitic acid: 31% Myristic acid: 12% Stearic acid: 11%